Observation of the Λb0→Λ+cK+K−π− decay
The Λb0→Λc+K+K−π− decay is observed for the first time using a data sample of proton-proton collisions at centre-of-mass energies of s=7 and 8TeV collected by the LHCb detector, corresponding to an integrated luminosity of 3fb−1. The ratio of branching fractions between the Λb0→Λc+K+K−π− and the Λb0...
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| Hauptverfasser: | , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
23 February 2021
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| In: |
Physics letters
Year: 2021, Jahrgang: 815, Pages: 1-10 |
| ISSN: | 1873-2445 |
| DOI: | 10.1016/j.physletb.2021.136172 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.physletb.2021.136172 Verlag, lizenzpflichtig, Volltext: https://www.sciencedirect.com/science/article/pii/S037026932100112X 
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| Verfasserangaben: | LHCb Collaboration |
MARC
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| 245 | 1 | 0 | |a Observation of the Λb0→Λ+cK+K−π− decay |c LHCb Collaboration |
| 246 | 3 | 3 | |a Observation of the lamda b 0 → lamda +c K +K − pi − decay |
| 264 | 1 | |c 23 February 2021 | |
| 300 | |a 10 | ||
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a Computermedien |b c |2 rdamedia | ||
| 338 | |a Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a LHCb Collaboration: R. Aaij, F. Archilli, S. Bachmann, D. Berninghoff, M. Borsato, M. Dziewiecki, G. Frau, D, Gerick, J. Grabowski, P.A. Günther, X. Han, S. Hansmann-Menzemer, J. Hu, R. Kopecna, B. Leverington, P. Li, H. Malygina, J. Marks, A. Piucci, M. Schmelling, S. Stemmle, D.J. Unverzagt. U. Uwer, C. Wang, L. Witola, A. Zhelezov [und viele weitere] | ||
| 500 | |a Gesehen am 30.06.2021 | ||
| 500 | |a Im Titel sind "0", Plus- und Minuszeichen hochgestellt, "b" und "c" tiefgestellt | ||
| 520 | |a The Λb0→Λc+K+K−π− decay is observed for the first time using a data sample of proton-proton collisions at centre-of-mass energies of s=7 and 8TeV collected by the LHCb detector, corresponding to an integrated luminosity of 3fb−1. The ratio of branching fractions between the Λb0→Λc+K+K−π− and the Λb0→Λc+Ds− decays is measured to beB(Λb0→Λc+K+K−π−)B(Λb0→Λc+Ds−)=(9.26±0.29±0.46±0.26)×10−2, where the first uncertainty is statistical, the second systematic and the third is due to the knowledge of the Ds−→K+K−π− branching fraction. No structure on the invariant mass distribution of the Λc+K+ system is found, consistent with no open-charm pentaquark signature. | ||
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